Re: [PATCH] dma/direct: turn ARCH_ZONE_DMA_BITS into a variable

From: Catalin Marinas
Date: Thu Oct 31 2019 - 14:06:25 EST


On Thu, Oct 31, 2019 at 05:58:53PM +0100, Christoph Hellwig wrote:
> On Thu, Oct 31, 2019 at 05:22:59PM +0100, Nicolas Saenz Julienne wrote:
> > OK, I see what you mean now. It's wrong indeed.
> >
> > The trouble is the ZONE_DMA series[1] in arm64, also due for v5.5, will be
> > affected by this patch. I don't know the right way to approach this problem
> > since depending on the merge order, this patch should be updated or the arm64
> > ZONE_DMA series fixed.
> >
> > Maybe it's easier to just wait for v5.6.
>
> Ok, I can wait. Or the arm64 maintainers can pick up this patch if
> you want to add it to that series.

This branch is stable (may add a fix but not I'm not rebasing it) if you
want to base this patch on top:

https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/log/?h=for-next/zone-dma

Otherwise, with your ack, I can add it on top of the above branch (aimed
at 5.5).

--
Catalin